cpu.h revision 80709 
1/*-
2 * Copyright (c) 2001 Jake Burkholder.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/sparc64/include/cpu.h 80709 2001-07-31 06:05:05Z jake $
27 */
28
29#ifndef	_MACHINE_CPU_H_
30#define	_MACHINE_CPU_H_
31
32#include <machine/frame.h>
33
34#define	CLKF_USERMODE(cfp)	(0)
35#define	CLKF_PC(cfp)		((cfp)->cf_tf.tf_tpc)
36
37#define	TRAPF_PC(tfp)		((tfp)->tf_tpc)
38#define	TRAPF_USERMODE(tfp)	(0)
39
40#define	cpu_getstack(p)		((p)->p_frame->tf_sp)
41#define	cpu_setstack(p, sp)	((p)->p_frame->tf_sp = (sp))
42
43/*
44 * Arrange to handle pending profiling ticks before returning to user mode.
45 */
46#define	need_proftick(p) do {						\
47	mtx_lock_spin(&sched_lock);					\
48	(p)->p_sflag |= PS_OWEUPC;					\
49	aston(p);							\
50	mtx_unlock_spin(&sched_lock);					\
51} while (0)
52
53/*
54 * CTL_MACHDEP definitions.
55 */
56#define CPU_CONSDEV		1	/* dev_t: console terminal device */
57#define	CPU_ADJKERNTZ		2	/* int:	timezone offset	(seconds) */
58#define	CPU_DISRTCSET		3	/* int: disable resettodr() call */
59#define CPU_BOOTINFO		4	/* struct: bootinfo */
60#define	CPU_WALLCLOCK		5	/* int:	indicates wall CMOS clock */
61#define	CPU_MAXID		6	/* number of valid machdep ids */
62
63#define CTL_MACHDEP_NAMES { \
64	{ 0, 0 }, \
65	{ "console_device", CTLTYPE_STRUCT }, \
66	{ "adjkerntz", CTLTYPE_INT }, \
67	{ "disable_rtc_set", CTLTYPE_INT }, \
68	{ "bootinfo", CTLTYPE_STRUCT }, \
69	{ "wall_cmos_clock", CTLTYPE_INT }, \
70}
71
72void	fork_trampoline(void);
73
74static __inline u_int64_t
75get_cyclecount(void)
76{
77
78	return (rd(tick));
79}
80
81#endif /* !_MACHINE_CPU_H_ */
82